Global Patent Index - EP 0248233 A3

EP 0248233 A3 19900124 - CATHODE MOUNTING A HIGH-FREQUENCY PIEZOELECTRIC CHIP

Title (en)

CATHODE MOUNTING A HIGH-FREQUENCY PIEZOELECTRIC CHIP

Publication

EP 0248233 A3 19900124 (EN)

Application

EP 87106707 A 19870508

Priority

JP 12574386 A 19860602

Abstract (en)

[origin: EP0248233A2] A piezoelectric crystal (3) without spontaneous polarization such as Li2B4O7 or quartz crystal is jointed to a cathode on the side opposite to the tip (1) thereof to finely drive the cathode. The surface observation apparatus mounting the cathode makes it possible to observe the surface of a sample (4) at high speeds.

IPC 1-7

H01J 37/067; H01J 37/28; H01L 41/08

IPC 8 full level

G01N 37/00 (2006.01); G01Q 10/04 (2010.01); G01Q 60/10 (2010.01); G01Q 70/08 (2010.01); H01J 37/067 (2006.01); H01J 37/28 (2006.01); H10N 30/20 (2023.01); H10N 30/85 (2023.01)

CPC (source: EP US)

B82Y 35/00 (2013.01 - US); G01Q 10/04 (2013.01 - EP US); G01Q 60/16 (2013.01 - EP US); H01J 37/067 (2013.01 - EP US); H01J 37/28 (2013.01 - EP US); H10N 30/85 (2023.02 - EP US); Y10S 977/872 (2013.01 - EP US)

Citation (search report)

  • [A] GB 2083694 A 19820324 - SECR DEFENCE, et al
  • [A] REV. SCI. INSTRUM., vol. 56, no. 8, August 1985, pages 1573-1576, American Institute of Physics; G.F.A. VAN DE WALLE et al.: "High-stability scanning tunneling microscope"

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

EP 0248233 A2 19871209; EP 0248233 A3 19900124; EP 0248233 B1 19930811; DE 3786955 D1 19930916; DE 3786955 T2 19940324; JP S62283542 A 19871209; US 4772817 A 19880920

DOCDB simple family (application)

EP 87106707 A 19870508; DE 3786955 T 19870508; JP 12574386 A 19860602; US 5665987 A 19870602